user
Describe the steps needed to solve this system of equations.

x + 4y = 7
5x + 2y = 7


assistant
To solve this system of equations, first subtract 4y from both sides of the first equation to obtain x = -4y + 7. Then substitute this into the second equation and solve for y. Finally, substitute the result for y back into either of the original equations to obtain the value of x.